Concrete form



H- J BAKER CONORETE FORM Jan. 20, l 925,l

Filed Jan. 19

Patented Jan. 20, 1925.

UNITED STATES HUGH J. BAKER, 0F INDIANAPOLIS, INDIANA.

CONCRETE roam.

Application filed January 19, 1923. Serial No. 618,565.

To all whom t mary concer/n:

Be it known that I, HUGH J. BAKER, a citizen of the United States, residing at Indianapolis, in thecounty of Marion and State of Indiana, have invented a new and useful Concrete Form, of which the following is a specification.

It is the object of my invention to provide an effective device of simple and inexpensive construction for supporting an spacing the falseivork tiles for, and thereinforcing rods of, a reinforced concrete floor, and for permitting the ready removal of such tiles; and for providing at the same time a convenient and strong attaching device for the attachment of desired articles to the ceiling, such for instance as metal lathing or wiring conduits.

' In carrying out my invention, I provide a metal spacing and supporting member which rests on the falsewrk soiiit, preferably with its ends depending at the edges of the sofit, to position such member on the soiiit and to provide hooks for supporting the metal tiles, and which has an elevated central portion over the middle of the soiht for supporting in proper spaced relationship the reinforcing rods embedded in the concrete beam; which elevated central portion is eventually embedded in the concrete so that the end portions of the member will be'supported therefrom after the soiiit and tiles have been removed; and these end portions of the member are provided with suitable holes, in any suitable number, for the attachment thereto of any desired thing which is to be supported from the ceiling, such as the aforesaid metal lathing or wiring conduits.

The accompanying drawing illustrates my invention: Fig. 1 is a fragmentary perspective view showing two sofiits and the metal tiles between them and part of the concrete in place, with theA reinforcing rods .and tile properly supported and positioned by supporting and spacing members of my invention; Fig. 2 is a perspective view of one of said supportingy and spacing members, before association with the reinforcing rods; Fig. 3 is a fragmentary transverse section through the lower part of the beam of a ceiling, sho-wing my supporting and spacing member partially embedded therein `and partially depending therefrom lin its condition after the removal of the soiiit and tiles; and F ig.' 4 isa fragmentary perspective View showing a modification.

I use my invention in connection with' any well-known style of falsework, having the usual soflits' 10, conveniently wooden planks, and any suitable tiles or forms 11 between the soiits of the falsework, the tilesbeing shown as sheet-metal sections of standard construction, whchcabut in the assembled d falseworkland which each extend from one soit to the next, as is clear from` Fig. 1, though forms of any material may be used; and in connection with any usual reinforcing rods 12 vlocated for eventual embedment in the beams 13 of the concrete ioor 14; which is poured upon the falsework formed by such soiits and tiles. As my invention does not concern itself with'the support for the soiiits, or with the girders ordinarily provided at the ends of the beams 13, 1 have not illustrated those things.

According to my invention, I support the reinforcing rods 12 in proper position, and also preferably support the tiles 11, by special supporting and spacing members of which the preferred form is shown in perspective in Fig. 2. There may be any number of these supporting and spacing members, arranged along each soflit 10. They should be spaced apart not farther than the length of a tile section 11, so that one may be located at each joint between abutting tile sections, as is clear from Fig. 1. I preferably make this supporting and spacing member of a single piece of sheetmetal, though it is not essential that it be either of sheet metal or in a single piece.

This reinforcing and spacing member in this preferred form comprises two end parts 20 which project down at the edges of the soiiit 10 and lie against such edges, which end portions 2() at their ends are bent upward to form hooks 21 for receivino1 the lower edges of the tile sections 11, preferably at the joints between such tile sections: two intermediate horizontal parts 22 which project toward each other from the upper ends the hooked end portions 20 and lie upon the upper surface of the sofiit 10 near its two edges; two upstanding leg portions 23 which project upward from the face of the soffit 10 from theadjacent ends of the two intermediate horizontal parts 22; anda central portion 24 connecting the upper ends of the two leg portions 23. The central portion 24 is thus elevated above the upper surface of the sofit 10, so that concrete may iow beneath it forv embedding' it in the beam 13. This central portion 24 -forms a support for the reinforcing rods 12. vTo hold such retween the fingers 25 and 26 near one end of the central portion 24; and when such reinforcing rods 12 are 4in place the lingers. 25

and 26 may if' desired be bent around them to hold them ri id lyin. place, as is clear from 'F igs. 1 Thetingers 25 and 26 before'being thus bent are shown in Fig. 2. Thefin ers .and 26 are preferably formed by part y cutting out suitablestrips in the central portion 24, and'ibendingsuch partly cut-out strips. upward, as is cleanfro'm Fig'.v

2; so that such fingers are integral with the remainder of the 'supporting'and' spacing member. This serves further tomake the centralmember 24 narrower, because the lingers 25 are strips' from the edges of such central member 24; and `to provide a hole through the middle of saidcentral member 21 if they are so to be supported, as that (gives 24, because thevfingers 26 are punched out ofsuch middle part; which hole and cutaway edge parts make it easier for the concrete to flow lbeneath the central portiony 24 and lill the Space there without voids; so that the strength of the beam 13 will not be interfered with, and the embedment of the parts 23 and 24v of my spacing and supporting member in the concrete will be'more secure. Sometimes the bent-down end portions 20 and their hooks 21 may be omitted, or the ends 3() may be turned up to serve as nonsupporting spacersfor tiles or forms as indicated in Fig. 4, as when other supporting arrangements for the tiles or forms l1 are used.

I make my spacing and supporting members in the formshown in Fig. 2,-Qand place them in proper positions on the soiits 10. Then I place the tile sections 11 inthe hooks a firm support for lsuch tile members an lets themv lie sufficiently closeaga-inst the edges ofl the s oHits 10` so that there willnot be sufficient space at suc-h edges for anyv loss of concrete therethrough.4 Where desired, any spreaders'for the tiles may be use-d. but

to avoid confusion these are not shown as they are no part .of my invention. 'Then the reinforcingrods 12v are put in place on my spacing 4and supportingmembers, in the positions determined by the fingers 25 and 26, and preferably vi'astened there by'bending' suchv fingers over them as shown in Fig.A 1. Then the concrete is 'pouredvfor the beams 13 and floor 14. When the concrete has suiciently set, the falsework is removed.v The ends of each spacer are lpulled downward and toward-eachother, as by gripping them with suitable pliers, thus moving them from the dotted-line to the full-line position shown in `Fig. 3 and straightening out if desired the bends between the parts 20, 22, and

soliits 10 may be 'taken away,iand then the 23. By thus pulling down the end portions,

they are released from the tile sections 11,

which may be' stripped oil' the concrete in*v any usual or convenient manner. In the same way, the part-s 30, 22,'and 23"may bepulled down, after the ltiles or formsl are removedf Y f Thel central portion 2 4 and 'leg portions 2 3 ofl my supporting'and spacing member is now embedded in the lower part of the.

beam 13, and is very rmly attached tothereinforcing'rods' 12 thereiiu'vbutvthe more or less straightenedparts 22 and 20 or22 -sired, they can readily be cut oli, part/ly or .85 and 30 arenow projecting downward from wholly, as by suitable shears or by a cold chisel. However, they furnish excellent attachingmembers, because oftheir firm support from the beaml3 and reinforcing rods 12, and may be used for the attachment to the ceiling of anything desired, suchas vmetal lathing or wiring conduits.' :To facilitate this attachment ofcther'things, I preferably providethe Iportions ofimy reinforcing and spacing member -which will eventually project downward-from thebeam 13 with vsuitable holes`,'which'may be nfany desiredl arrangement and location and 4of any desired number." As shown, I have provided on'e ysuch'hole in each of the parts 3()y and'22,` which arrangement' 20 and 22, or and number of holes ordinarily is sufficient; but this arrangement 'and number' of holes is merely illustrative.

I vhave. shown my supporting and 'spacing member as beingmade of a vsingle stamping of sheet-metahand Iprefer to make it vof sheet metal rand as a rsingle stamping. However, this 'is merely' a preferable way of makingit, and my invention is lnot limited to sheetmetal or to the single-stamping structure save in those claims rwhere that is specified.

I claim as lmy invention:

1.v A'supporting and 'spacing vmember' for use in concrete oors,`comprising a portion adapted to rest on the upper surface of a soiit, two hooked depending end port-ions for receiving the edges 'of tile sect-ions and hanging belowjsaid partv which rests. on

the soflit, and an elevated portion raised above and supported from the part which rests on the soiiitsothat it will be embedded in the'c'oncrete beam whenthelati ter is poured.'

leo

2. A supporting and spacing member 'for use in concrete floors, comprising a portion adapted to rest on the upper surface of a soflit, two hooked depending end portions for receiving the edges ofA tile sect-ions, and an elevated portion supported from the part which rests on the soflit so that it will be embedded in the concrete beam when the latter is poured, those parts of said member which arenot embedded in the concrete when the latter is poured including a part provided with an opening through it to permit the attachment thereto of things to be attached to the ceiling.

3. A supporting and spacing member for use in concrete floors, comprislng a portion adapted to rest on the upper surface 0f a sofiit, two hooked depending end portions for receiving the edges of tile sections and hanging below said part which rests on the soft, and an elevated portion raised above and supported from the parts which rest. on the soiit and arranged to support reinforcing rods of the concrete beam to be formed on the soiiit.

' 4. A supporting and spacing member for use in concrete floors, comprising a portion adapted to rest on the upper surface of a sofiit, two dependin parts for extending downward at the e ges of the soflit, and an elevated portion supported from the parts which rest on the soflit and arranged to support reinforcing rods of the concrete beam to be formed on the sofit.

5. A supporting and spacing member for use in concrete floors, comprising a portion adapted to rest on the upper Surface of a soit, two depending parts for extending downward at the edges of the soiiit, and an elevated portion supported from the parts which rest on lthe soit and arranged to support reinforcing rods .of the concrete beam to be formed on the soflit, said elevated portion being provided with upwardly projecting fingers for locating the reinforcing rods which rest on said elevated portion.

6. A supporting and spacing member for` use in concrete floors', comprising a portion adapted to rest on the upper surface of a soflit, and an elevated portion supported from the parts which rest on the soflit and arranged to support reinforcing rods of the concrete beam `to be formed on the soifit, said elevated portion being provided with upwardly projecting fingers for locating the reinforcing rods which rest on said elevated portion.

7. A supporting and spacing member for use in concrete floors, comprising a portion adapted to rest on the upper surface of a soit, and an elevated portion supported from the parts which rest on the soit and arranged to support reinforcing rods of the concrete beam to be formed on the soit,

said elevated portion being provided with upwardly projecting fingers for locating the lreinforcing rods which rest on said elevated portion, and said fingers being flexible so that they may be bent round the reinforcing rods.

8. A supporting and spacing member for use in concrete floors, comprising a portion adapted to rest on the upper surface of a sofit, and two hooked depending end portions `for receiving the edges of tile sections, said member being provided with upwardly projecting fingers for locating the reinforcing rods which rest on said elevated portion.

9. A supporting and spacing member for use in concrete floors, comprising a portion adapted to rest on the upper surface of a soit, and two hooked depending end portions for receiving the edges of tile sections, said member being provided with upwardly projecting fingers-for locating the reinforcing rods which rest onsaid elevated portion, and said fingers being flexible so that they may be bent round the reinforcing rods.

10. A supporting and spacing member `for use in concrete floors, comprising twoend portions for projecting downward at the edges of a soflit, two intermediate portions projecting toward each other from the upper endsof said end portions and arranged to rest on the upper surface of asoit near its edges, upstanding legs from the adjacent ends of said intermediate portions, and a central elevated portion supported on said upstanding legs for embedment in the concrete.

11.! A supporting and spacing member for use 1n concrete floors, comprising two end portions for projecting downward at the edges of .alsofiit, two intermediate portions projecting toward each other from the upper ends of said end portions and arranged to rest on the upper surface of a soiiit near its edges, upstanding legs from the adjacent ends of said intermediate portions, and a central elevated portion supported on said upstanding legs for embedment in the concrete, all said parts being formed of a. single strip of sheet metal.

12. A supporting and spacing member for use in concrete floors, comprising two end portions for rojecting downward at the edges of a so t, two intermediate portions projectingtoward each other from the upper ends of said end portions and arranged to rest on the upper vsurface of a sofiit near its edges, upstanding legs from the adjacent ends of saidintermediate portions, and a central elevated portion supported on said upstanding legs for embedment in the concrete, said end portions being provided with upwardly opening hooks 'for receiving the lower edges of tile sections.

13. A supporting and spacing member for use in concrete floors, comprising two end portions for projecting downward at the edges of a'solit, two intermediate. portionscprojecting towardeach other 'from the upper ends of said end portions andarrangedl to] rest on the upper surfacevofma 1 sofiit near its edges, upstandinglegs from the Iadjacent ends of said intermediate portions anda central elevated` portion supportedV on said upstanding legs for embedment in thelconcrete, said central .elevated portion being provided-with fingers for po'- sitioning Von said elevated'portion reinforcing rods for en'ibedment'in the concrete.

v14, L supporting and spacing member foruse in concrete oors, comprising vtwo end portions for projecting downward at the edges of a soffit, two intermediate portions ,projecting toward each other from the upper ends of saidend-portions andarranged to rest onthe upper surface 'f` a solit near yits edges, upstandingvlegs romthe adjacent ends of said vintermediate portionsT and a central elevated portion supported on said 'pstanding legs 'forernbedment inthe concrete, said end portions being provided withupwardly opening hooks for receiving the lower edges of tile secuse in concrete Hoors, comprising two end portions for projecting downwardatl the edges of a sonit, twointermediate portions projecting toward eachother from the upper ends of said Vendv portions and arranged to A rest on theiupper surface of asoiiit near its edges, yupstandinglegs from the adjacent wendsot' saidA intermediate portions, and a central elevated portion supportedv on said upstanding .legs for embedmentin the concrete, those parts'lof said member which are not embedded inthe concrete .when the latter-is `poured including a part 'provided with v.an-opening through it to permit the l attachment.theretoof things, to be attached`- j to thevceil-ing. i *j v In witness whereof, I have.` hereunto` set my hand at Ipndianapolis,-Indiana, this 5th day of January, A. D. one thousand nine hundred and twenty-three..

ff HUGH 1J. BAKER.' 

